【Product Specifications】・Chuck capacity-boring drill：0.5 to 3.2mm, keeping of Minimal parts：0.1 to 3.2mm・1 Chuck type.・Length-190mm(except drill)・Material-Body：aluminum・PP・NBR, Chuck：Brons, Drill：HSS steel・With a light lifting and lowering of the handle, you can do the drilling work with the micro-drill quickly and accurately.・Included drill-2.0,2.5,3.2mm